1. March, J., Advanced Organic Chemistry. Reactions, Mechanisms and Structure, New York: John Wiley and Sons, 1992, p. 387.
2. Yanovskaya, L.A., Yufit, S.S., and Kucherov, V.F., Khimiya atsetalei (Chemistry of Acetals), Moscow Nauka, 1975.
3. Monral, E. and Hand, C.R., J. Am. Chem. Soc., 1950, vol. 72, p. 5345.
4. Moffett, R.B., Org. Synth. Call., 1963, vol. 4, p. 427.
5. Shank, K., Chem. Ber., 1967, vol. 100, p. 2292.